PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-20:12:30
G10     257.0          31.9               11.0 +/-    1.83      18.5 +/-    1.83  0.040 / 0.040
G13     47.7           25.3               10.5 +/-    2.79      20.4 +/-    2.79  0.040 / 0.040
G15     80.0           58.7               10.0 +/-    0.72      11.5 +/-    0.72  0.110 / 0.450
G16     288.1          14.8                5.2 +/-    3.63      12.9 +/-    3.63  0.140 / 0.450
G20     280.1          55.2               10.2 +/-    3.16      12.1 +/-    3.16  0.050 / 0.060
G21     344.0          65.2               10.5 +/-    0.71      11.4 +/-    0.71  0.050 / 0.060
G26     261.3          12.5                9.3 +/-    1.74      24.5 +/-    1.74  0.200 / 0.180
G29     166.4          42.5               11.7 +/-    0.84      16.3 +/-    0.84  0.110 / 0.190